Give a formula for a piecewise-defined function f for the graph shown.
A.
f(x) = 
B.
f(x) = 
C.
f(x) = 
D. f(x) = (x - 3)2 - 5
Answer: B
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Find the product.9x5(6x7 - 5)
A. 54x12 - 45x5 B. 54x12 - 5 C. 9x5 D. 54x7 - 45
Solve the problem.The cost, in millions of dollars, for a company to manufacture x thousand automobiles is given by the function 
Find the number of automobiles that must be produced to minimize cost.
A. 45 thousand automobiles B. 3 thousand automobiles C. 9 thousand automobiles D. 6 thousand automobiles
Solve the system graphically.
A. (1, 20), (-3, 12), 
B. 
, 
, 
C. (1, 20), (-3, 12)
D. (1, 21)
Find the indicated roots.Fifth roots of i; trigonometric form
A. i, cos 72° + i sin 72°, cos 144° + i sin 144°, cos 216° + i sin 216°, cos 288° + i sin 288° B. -i, cos 36° + i sin 36°, cos 108° + i sin 108°, cos 252° + i sin 252°, cos 324° + i sin 324° C. i, cos 18° + i sin 18°, cos 162° + i sin 162°, cos 234° + i sin 234°, cos 306° + i sin 306° D. 1, cos 36° + i sin 36°, cos 108° + i sin 108°, cos 252° + i sin 252°, cos 324° + i sin 324°